R. Maillhat instrument in Paris - Lot 112

Lot 112
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Estimation :
100 - 150 EUR
Résultats avec frais
Résultat : 153EUR
R. Maillhat instrument in Paris - Lot 112
R. Maillhat instrument in Paris Probably an instrument for observing a hot spring with 3 metal reflectors, a vertical position, but also axial. Brass sight tube with prisms for light diffraction. The base is made of steel with a brass plinth, it seems to have been created for electricity. Work of the beginning of the XIXth century
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